a80babffb6
Canvas rendering is a major remaining path where WebContent directly owns GPU-facing drawing state. Back 2D and WebGL canvas contexts with remote Compositor transports, so WebContent talks to canvas surfaces through IPC while the Compositor owns the rasterization resources. This is a large step toward GPU sandboxing because canvas GPU work now lives behind the Compositor boundary. It also gives OffscreenCanvas the process-independent canvas plumbing that HTMLCanvasElement now uses, making worker-owned canvases possible without another WebContent-local rendering path.
54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
/*
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* Copyright (c) 2024, Andrew Kaster <andrew@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibJS/Runtime/Realm.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/Bindings/WebGLSync.h>
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#include <LibWeb/WebGL/WebGLSync.h>
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#include <GLES2/gl2.h>
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namespace Web::WebGL {
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GC_DEFINE_ALLOCATOR(WebGLSync);
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GC::Ref<WebGLSync> WebGLSync::create(JS::Realm& realm, GC::Ref<WebGLRenderingContextBase> context, GLsyncInternal handle)
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{
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return realm.create<WebGLSync>(realm, context, handle);
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}
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WebGLSync::WebGLSync(JS::Realm& realm, GC::Ref<WebGLRenderingContextBase> context, GLsyncInternal handle)
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: WebGLObject(realm, context, 0)
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, m_sync_handle(handle)
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{
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}
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WebGLSync::~WebGLSync() = default;
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void WebGLSync::initialize(JS::Realm& realm)
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{
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WEB_SET_PROTOTYPE_FOR_INTERFACE(WebGLSync);
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Base::initialize(realm);
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}
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ErrorOr<GLsyncInternal> WebGLSync::sync_handle(WebGLRenderingContextBase const* context) const
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{
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TRY(validate_context(context));
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if (invalidated_for_context(context))
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return Error::from_errno(GL_INVALID_OPERATION);
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return m_sync_handle;
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}
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ErrorOr<Optional<GLsyncInternal>> WebGLSync::sync_handle_for_deletion(WebGLRenderingContextBase const* context)
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{
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TRY(validate_context(context));
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if (invalidated_for_context(context))
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return Optional<GLsyncInternal> {};
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invalidate();
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return Optional<GLsyncInternal> { m_sync_handle };
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}
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}
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